Most4 MMHS - Military Message Handling Systems

MOST4 MMHS provides complete military messaging support for strategic scenarios (fixed networks) and tactical environments, according to the prevailing NATO standards for military communications.

MOST4 MMHS solution for mobile units has a flexible architecture and comprises a set of modules designed to fit the tactical communications requirements of different kinds of ships, aircrafts and vehicles. The system modular configuration allows the best support for different ship sizes, number of users and communications protocols.
The seamless integration of MOST4 MMHS services over fixed and tactical networks provides a powerful communication capability among strategic sites and mobile units supported in STANAG 4406 Annex E and even when ACP127 SUPP-1 is still used. In this case, the ACP 127 Gateways offer the full capability of the proven EID solutions for ACP-127, now fully integrated in the MMHS environment

MOST4 MMHS provides automated store and forward, writer-to-reader (desk-to-desk) messaging across organisations, with a comprehensive, secure and reliable capability to support operational and daily management tasks. A significant set of the system functionalities such as directory services, central archives, centralized and local system management, security and Public Key Infrastructure complement the message handling functions,
Resorting to state-of-the art information and information security technologies, MOST4 MMHS replaces paper-based messaging and legacy ACP127 systems. Its capability for transporting any data attachment, from text to imagery or even video, makes it easy to integrate message contents with desktop environments and office applications.

MOST4 MMHS is currently supported on Microsoft Windows® operating systems and includes a complete and dedicated infrastructure to cope with military messaging requirements. The system makes use of several MS Windows platform services and extends Windows components to adequately support a number of operational functions, while providing an easy to manage administration capability, with high flexibility and increased functionality.

Standards and interoperability

MOST4 MMHS is compliant with STANAG 4406 ed.2 - the NATO standard for military messaging - and related Annexes, supporting P772, PCT and S/MIME content types. The compliance with Annex D ensures interoperability with the legacy ACP127 SUPP-3 telegraphic networks (TMI-5). On the other hand, the compliance with Annex E, ACP142 (P_MUL) and STANAG 5066 is the basis for the new tactical messaging communications (TMI-1), the replacement of ACP127 SUPP-1.

Furthermore, MOST4 MMHS follows the NATO Integrated Interoperability Model (NIIM) recommendations for achieving full interconnectivity with NATO organizations and nations. The system is thus interoperable as far as messaging, directory and security services for fixed networks are concerned, being also interoperable in tactical environments, according to the NATO messaging standards for both MMHS and ACP127 protocols.

The system supports MMHS tactical messaging through STANAG 4406, Annex E mandatory TMI-1 protocol, including the ACP142 standard (P_MUL) for reliable multicast and EMCON support and makes use of STANAG 5066 for HF data communications. MOST4 MMHS also supports ACP127 tactical messaging according to ACP127 SUPP-1, covering broadcast, ship-shore and ship-to-ship communications.

MOST4 MMHS provides directory support for all organisational elements, according to the standard ACP133 definitions, including MMHS and ACP127 strategic and tactical operational organisations, users, roles and privileges, PKI public elements, system and network resources.

System Highlits

MOST4 MMHS is a “fire and forget” type system that ensures:

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